The 9.0.1 Plesk packages for Debian 4.0 will install and work on Debian 5.0, EXCEPT for psa-proftpd (OpenSSL library version issue). The psa-proftpd package from 9.2.3 (first version with official Debian 5.0 support) will install correctly into Plesk 9.0.1 and appears to work correctly.
Discovered today that while I was safely encrypting duplicity backups with a GPG key, I hadn't stored the key safely (other then in the backup itself). If the servers had failed, this would have left me with a backup that I couldn't access.
Working on Uformia's upcoming beta release. This has been eating most of my time, including two trips to the UK in the month. This got me out of the habit of posting, I'm attempting to get back into it now.